Blu-ray

It is absolutely better. Well worth it for the better sound. I have done a few A/B tests with high quality BR rips, vs the same movie streamed in 4k, and the picture quality difference is pretty negligible.

Blu-ray.com lets you get notified when a release happens.

A good Blu-ray still looks better in darker scenes than even the best streaming IMO though.

A typical 1080p Blu-ray has a high bitrate, ranging from 20–40 Mbps. This allows the video to retain more detail and texture, especially in complex scenes like fast action or dark environments. Less compression means fewer visible artifacts, such as blockiness, banding, or loss of detail.

I’ll take Blu-ray over streaming any day.

Blu ray all day every day!

The audio is superior to streaming in my opinion, the video is a bit of a mixed bag. The physical medias video bit rate is higher via Blu-ray, but you miss out on the higher resolution and also high dynamic range

Yes it is better than streaming. Exception may be some IMAX enhanced on disney but I think even blu-ray should still be better than that.

Yes. Still higher bitrate than streaming. You might miss dv/hdr though. Personally id take the higher bitrate

DVD is very poor quality when compared to Blu-ray, and it's Blu-ray which I would recommend.